But what he has not done is set out what he really would do in office.
He was asked a number of times whether he would do what McCain is doing, suspend his campaign and pull his ads off the air.
"The nature of his interest, what it is he is planning to do and how he would achieve it is opaque, " said Johnston.
But it is unclear what he would do if he left office in 2014.
"As far as I am concerned, my services to the game and country are known to everyone so it is a needless question as to what I would like to do in this term, " he is reported to have said.
Most of the hoopla about him has been about what he is, rather than what he would do.
We think it is very significant that he is doing what he said he would do to some degree of skepticism back when he announced this policy.
This is the case for the prosecution: Ed Balls is only telling us what he would do now if he was chancellor, not what he will do if he becomes chancellor in 2015.
Kerry responded that there is no difference between what either Edwards or he would do about trade as president.
The fear is what Mr Humala would do with power if he gets it.
It is not at all what Buffett would do as he does not run a hedge fund, but a portfolio of stocks and a portfolio of companies.
To do otherwise, he claimed, would be contrary to what our country is about.
In other words we do not know what the new settlement he is seeking to negotiate would look like.
And the President looks forward tomorrow to thanking the troops, thanking those who served, and discussing what that sacrifice that Americans have made means now, as the Iraq war comes to an end -- which is, as you know, what the President promised he would do when he was running for President, which was to end this war responsibly.
And what he's threatening to do, really the implicit threat, is that they would split the companies into two so that the safe portion, the municipal bond portion, would be one company, and the troubled portion would be another company, and of course the minute that happens, those troubled companies are basically doomed because it's the municipal bond part of the thing that's holding the whole apparatus up.
With that always came a certain inevitability he would eventually want to seek a new challenge and I am sure that is what he will do.
"I would maintain that today the Catholic Church is a model of what to do, " he said.
This is the peer review and response part of scientific method that Taylor is referring to, and Mann did what any good scientist would do: he re-examined his numbers.
But because Gephardt is essentially a Democratic "team player, " these sources could not say what he would do if Gore actually offered him the job.
CNN: Sources: Gore campaign and Gephardt in 'serious' running mate talks
Mr McCreevy is known for his light regulatory touch, but he hinted that he would know what to do if they didn't.
What we do not see is that the shopkeeper, had he not been forced to replace his window, would have instead bought himself a new pair of shoes.
That is what Eric Schwartz, co-head of Goldman Sachs Global Asset Management, said Tuesday he would do this summer.
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